Finding the Fourth Proportional to 522,459,852.30, 783,691,390.08 and 128,986,723.98
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Solution
The fourth proportional to 522,459,852.30, 783,691,390.08 and 128,986,723.98 is: 193,480,483.85
Step by Step Solution
- Step 1: Write the proportion equation
522,459,852.30 : 783,691,390.08 = 128,986,723.98 : x - Step 2: Convert to fraction form
522,459,852.30/783,691,390.08 = 128,986,723.98/x - Step 3: Cross multiply
522,459,852.30x = 783,691,390.08 × 128,986,723.98 - Step 4: Simplify right side
522,459,852.30x = 101,085,785,017,751,472 - Step 5: Solve for x
x = 101,085,785,017,751,472/522,459,852.30 - Step 6: Final answer
x = 193,480,483.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.